return {
  s("acm", {
    t {
      "#include<iostream>", "#include<cstdio>", "#include<cstring>", "#include<algorithm>", "#include<bitset>",
      "#include<cassert>", "#include<cctype>", "#include<cmath>", "#include<cstdlib>", "#include<ctime>",
      "#include<deque>", "#include<iomanip>", "#include<list>", "#include<map>", "#include<queue>", "#include<set>",
      "#include<stack>", "#include<vector>",
      '',
      'using namespace std;',
      '', 'int main() {', '\tios::sync_with_stdio(false);', '\tcin.tie(0);', '\tcout.tie(0);', '\t' },
    i(1, '// code here'),
    t { '', '\treturn 0;', '}' }
  })
}
